In a fatal incident and subsequent injuries, a single assailant killed a young man and wounded three others during a knife attack on a Friday, at the Sillim subway station located on the southeast edge of Seoul, the capital of South Korea. The initial reports from Yonhap News Agency indicate that the attacker produced a weapon near Exit 4 of the station around 14:00 local time, striking one man in his twenties in an alley adjacent to the subway entrance. The other three victims were hurt while fleeing along the same street, and they were transported to nearby medical facilities for treatment. One of the injured people was reported to be in a particularly grave condition as the investigation and hospital assessments continued to unfold, highlighting the seriousness of the harm caused in this incident.